Features

Complete guide to all features in Grammar Assistant.

7 Enhancement Modes

1. Fix Grammar ✓

Correct grammar and spelling errors.

Example:

Input:  "She don't like apples and banana"
Output: "She doesn't like apples and bananas"

2. Natural 💬

Make content natural and conversational.

Example:

Input:  "I am writing to inquire about the status"
Output: "I'm reaching out to check on the status"

3. Formal 👔

Professional, business-appropriate tone.

Example:

Input:  "Hey, can you send me that file?"
Output: "Hello, could you please send me that file?"

4. Polite 😊

More polite and courteous communication.

Example:

Input:  "Send me the report"
Output: "Would you mind sending me the report?"

5. Shorter 📉

Reduce length, keep key points.

Example:

Input:  "In spite of the fact that it was raining heavily"
Output: "Although it was raining heavily"

6. Longer 📈

Expand with more details.

Example:

Input:  "The project is good"
Output: "The project demonstrates excellent quality and shows great attention to detail"

7. Creative 💡

Make content creative and engaging.

Example:

Input:  "The product works well"
Output: "This product truly shines in its performance"

Custom Enhancement Options

Create up to 5 custom prompts for your specific needs.

How to Create

1. Settings (⚙️) → "Custom Enhancement Options"
2. Click "Add Custom Option"
3. Enter Label and Prompt
4. Save

Best Practices

Keep prompts short (2-5 words):

• ✅ "Add emojis"
• ✅ "Simplify for beginners"
• ✅ "Remove jargon"
• ❌ "Please make this text more simple and easy to understand for people who are new to this topic"

Why? Shorter prompts = Faster response + Lower cost

Example Custom Prompts

Prompt	Use Case
Add emojis	Social media posts
Simplify technical terms	Documentation
Make persuasive	Sales copy
Add bullet points	Lists and formatting
Remove passive voice	Active writing

AI Provider Comparison

OpenAI

• Models: gpt-4o-mini, gpt-4o, gpt-4, etc.
• Default: gpt-5-nano
• Best for: High quality, general purpose

Google Gemini

• Models: gemini-2.5-flash, gemini-1.5-pro, etc.
• Default: gemini-2.5-flash
• Best for: Cost-effective alternative

Switch anytime in Settings without losing preferences.

Token Usage Tracking

Real-time monitoring of API usage and costs.

What's Tracked

• Input tokens (your text)
• Output tokens (AI response)
• Estimated cost per request
• Total tokens and spending

Where to View

• Main window: Current session stats
• Settings: Detailed history and totals
• Reset: Clear tracking data anytime

INFO

Cost estimates are for OpenAI. Gemini costs may differ.

Performance

Response Time: 1-3 seconds typical

• Depends on: Model, text length, network speed

Resource Usage:

• App size: ~20MB
• Memory: <100MB
• No background processes

Privacy & Security

What We Store Locally

• ✅ API keys (secure keychain)
• ✅ Settings and preferences
• ✅ Custom enhancement options
• ✅ Token usage statistics

What We DON'T Collect

• ❌ Your text content
• ❌ Analytics or telemetry
• ❌ Personal information
• ❌ Usage patterns

Your text is only sent to your chosen AI provider when you press Cmd+Shift+G.

Limitations

Current constraints to be aware of:

• Platform: macOS only (10.15+)
• Shortcut: Cmd+Shift+G fixed (not customizable)
• Token limit: ~4000 tokens per request
• Internet: Required for AI API calls
• Cost: API usage charged by provider

Tips for Best Results

✅ Do

• Use complete sentences or paragraphs
• Select appropriate enhancement mode
• Review AI output before using
• Keep text under 2000 words

❌ Don't

• Submit code or binary data
• Share sensitive information
• Rely 100% on AI (always review!)
• Send extremely long texts (split them)